Drip apparatus for dental engines



(No Model.) i

T. E. DAUGHBRTY. DRIP APPARATUS FOR DENTAL ENGINES.

. No. 568,163. Patented Sept. 22, 1896.

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NITED STATES ATENT OFFICE.

DRIP APPARATUS FOR DENTAL ENGINES.

SPECIFICATION forming part of Letters Patent No. 568,163, datedSeptember 22, 1896.

Application filed January 23, 1896. Serial No. 576,614. (No model.)

To a whom it may concern.-

Be itknown that LTHOMAS E. DAUGHERTY, a citizen of the United States,residing at Guthrie Centre, in the county of Guthrie and State of Iowa,have invented certain new and useful Improvements in Drip Apparatus forDental Engines; and Ido declare the following to be full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention has relation to improvements in drip apparatus for dentalengines and similar devices and mechanisms, and the 9bject is to providean improved and useful apparatus to convey water to a tool requiringcleansing or lubrication during the processes of operation andmanipulation.

I have fully and clearly illustrated my invention in the accompanyingdrawings, wherein- Figure 1 is a view in elevation showing my inventionapplied to a dental engine. Fig. 2 is a detail of the nozzle andcompressionvalve removed from the hand-piece. Fig. 3 is a detail of thesupport'for the water-cup.

Referring to the drawings, Adesignates a dental engine of any approvedconstruction comprising the usual principal parts, as the engine-post,the cable or flexible shafttube, and metal hand-piece carrying theemerywheel or other rotating tool.

To the head of the engine-post, on the ends of the yoke 1, are securedtwo oppositely-arranged socket-pieces 2 2 which take in two standards orrods 3 51, supporting on their tops a ring or annulus 4, in which thewatercup 13 is hung by means of opposite1y-arranged arbors 5 5substantially as shown. In the cup is formed a small discharge-port, asindicated by the dotted lines, and on the end of the post-tube issecured one end of a small flexible tube 6, preferably of india-rubber,carrying on its free end a metal drip-nozzle 7, secured to the forwardportion of the hand-piece by means of a sleeve 8,fitted thereto andfixed to the drip-nozzle,substantially as shown. The end of the nozzleis arranged closely adjacent to the tool or whee1,so that the water mayfall thereon during the process of operation. On the nozzle is fulcrumeda compression-valve or cut-ofi 9,11aving its one end reaching over ontothe flexible tube, as at 10, which is borne down to close the tube by aspring 11,forcing up the hand-piece of the cutoif, and operating to stopor regulate the flow of water through the nozzle. The flexible tube isheld detachably to the cable of the engine by means of two or more.S-shaped keepers 12, as indicated in Fig. 1 of the drawings.

The use of my device is apparent by examination of the drawings, takenin connection with the foregoing description, but may be here stated asfollows: The cup being arranged and disposed in its seat or position onthe engine-post, the flexible tube is then attached by the keepers tothe cable and the nozzle-piece arranged and adjusted on the hand-piece,and then the cup beingsupplied with water the apparatus is ready forbeing used in connection with the engine for the purpose of deliveringwater to the tool rotated by the engine.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-- a In a dental engine, and in combination withthe engine-post, the cable and the hand piece, of a drip apparatus,comprising the vertical socket-pieces 2, 2 secured to the yoke of theengine-post, the supporting-rods 3, 3*, arranged in the sockets, andprovided with a ring a at their tops, the water-cup B supported onarbors in the ring, the tube 6 secured to the bottom of the cup, and thedrip-nozzle? on the outer end of the tube formed with a sleeve 8 to. fitover the handpiece of the engine, and provided with a spring-actuatedcut-off 9 arranged to bear on the tube in advance of the nozzle,substantially as and for the purpose set forth. In testimony whereof Ihereunto aflix' my signature in presence of two witnesses:

W'itnesses:

' E. 0. LANE,

CARL H. LANE.

